user
Generate a short story about two kids

Now complete the following instance -
Input: Riding bicycles
Output:
assistant
Two kids, Martha and Alex, were riding their bicycles around the neighborhood. It was a bright summer day and the streets were mostly empty. As they rode, they soon found themselves in a part of town neither of them had ever seen before. The houses were a little bigger and the gardens were more lush, and the two kids were delighted.

They continued riding and eventually came across a park with a large garden in the center. They decided to stop and explore the garden. As they were walking around, they noticed a beautiful fountain in the middle of the garden with a sculpture of a mermaid perched at the top. They stopped to admire its beauty and soon enough they were laughing and splashing around in the fountain. They had a wonderful time, one they would never forget.